Demo

Application Developer

JRD Systems
Downey, CA Contractor
POSTED ON 12/18/2025 CLOSED ON 1/17/2026

What are the responsibilities and job description for the Application Developer position at JRD Systems?

Job Title – Application Developer/ Senior Full-Stack Systems Programmer

Location – Downey, CA (Onsite)

Duration – 12 month

Rate - $40/hr - $45/hr on w2

**Only on W2** & Candidates Local to California are highly preferred**

JOB DETAILS:

Position Description

The description is the same as with the Senior Programmer, except this classification functions under general supervision. The Programmer, in development of applications software, is responsible for analyzing and refining systems requirements; translating systems requirements into applications prototypes; planning and designing systems architecture; writing, debugging and maintaining code; determining and designing applications architecture; determining output media/formats; designing user interfaces; working with customers to test applications; assuring software and systems quality and functionality; integrating hardware and software components; writing and maintaining program documentation; evaluating new applications software technologies; and/or ensuring the rigorous application of information security/information assurance policies, principles and practices to the delivery of application software services. The Programmer, in development of operating systems, is responsible for analyzing systems requirements in response to business requirements, risks and costs; evaluating, selecting, verifying and validating the systems software environment; evaluating, selecting and installing compilers, assemblers and utilities; integrating hardware and software components within the systems environment; monitoring and fine-tuning performance of the systems environment; evaluating new systems engineering technologies and their effect on the operating environment; and/or ensuring that information security/information assurance policies, principles and practices are an integral element of the operating environment.


Skills Required

The Programmer will possess knowledge and experience in applications software development principles and methods sufficient to participate in the design, development, testing and implementation of new or modified applications software; operating systems installation and configuration procedures; organization’s operational environment; software design principles, methods and approaches; principles, methods and procedures for designing, developing, optimizing and integrating new and/or reusable systems components; pertinent government regulations; infrastructure requirements, such as bandwidth and server sizing; database management principles and methodologies, including data structures, data modeling, data warehousing and transaction processing; functionality and operability of the current operating environment; systems engineering concepts and factors such as structured design, supportability, survivability, reliability, scalability and maintainability; optimization concepts and methods; establish and maintain cooperative working relationships with those contacted in the course of the work; and speak and write effectively and prepare effective reports.


Skills Preferred

  • Strong with Operating Systems & Platforms: Linux (RHEL), containerization with Podman, orchestration with OpenShift
  • Proficient in Programming Languages & Frameworks: Go, React.js
  • Skilled with Database Technologies: PostgreSQL (design, optimization, query performance tuning)
  • Strong in Monitoring & Infrastructure Tools: CheckMK, system monitoring and alerting best practices
  • Strong with Collaboration & Process: Agile/Scrum methodology, Git/GitHub for version control
  • Strong ability to set up and manage build/run environments for complex applications
  • Skilled in documenting codebases and technical processes for maintainability and knowledge transfer
  • Ability to troubleshoot and resolve issues across distributed systems with minimal oversight
  • Good communicator, able to interact effectively with developers, management, customers, and vendor staff
  • Capable to learn new technologies and customer business processes
  • Adaptable work style, able to be productive in mixed telework, onsite office environments, and customer’s air gapped production environment


Experience Required

This classification must have a minimum of five (5) years of experience in electronic data processing systems study, design, and programming. At least three (3) years of that experience must have been in a lead capacity.


Experience Preferred

  • 5 years working with Linux (RHEL) environments, including system setup, configuration, and optimization
  • 3 years with containerization technologies (Podman, Docker, or equivalent) and orchestration platforms (OpenShift/Kubernetes)
  • 3 years of professional experience with Go programming language (backend services, performance optimization)
  • 3 years with React.js (front end development, UI/UX integration)
  • 3 years with PostgreSQL (database design, query optimization, performance tuning)
  • 2 years implementing and managing monitoring solutions (CheckMK or equivalent)
  • 5 years in two or more major programming languages (like Java, .NET, Python, Go, Ruby, ANSI C)
  • 4 years in application testing (unit, integration, regression) and environment monitoring


Education Required

This classification requires the possession of a bachelor’s degree in an IT-related or Engineering field. Additional qualifying experience may be substituted for the required education on a year-for-year basis.

Salary : $40 - $45

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